radikaalpolümerisatsioonil

Radikaalpolümerisatsioonil is a chemical process used to create polymers. It involves a chain reaction initiated by free radicals. These radicals are highly reactive species with an unpaired electron. The process typically begins with an initiator molecule, which decomposes to form free radicals, often due to heat or light. These primary radicals then attack a monomer molecule, adding to its double bond and creating a new radical species. This new radical can then attack another monomer, and so on, propagating the chain growth. The chain continues to grow by adding more monomer units until it is terminated. Termination can occur through several mechanisms, such as the combination of two growing chains or disproportionation. Radikaalpolümerisatsioonil is a versatile method used in the synthesis of a wide range of polymers, including polyethylene, polypropylene, and polystyrene, which are found in numerous everyday products. The reaction conditions, such as temperature, concentration of monomers and initiators, and the presence of solvents, can be controlled to influence the molecular weight and properties of the resulting polymer. This control makes it a fundamental technique in polymer chemistry.